Electrically-controlled perforating-machine.



. PATENTEDJUNEBO', 1903.

Q H. L. DAVIS. 1 BLEGTRIOALLY' CONTROLLED PERIFORATING MACHINE- APPLIOATIGNIILEDOOT.14. 1901.

No. 732,279. v

o MODEL.

are. 732,279.

UNIT D STATEs (PATENT Patented June 30, 1903;

.TO GEORGE HOWLETT DAVIS, OF ORANGE, NEW JERSEY.

ELEoTmcALLY-coNTRoLLED PERFORMING-MACHINE.

srncrrr'cnrron forming part of Letters Patent No. 32,279, dated June so, ieoe.

Application filed October 14,1901. strain). 78.585. (NomodelJ L v To all whom it may concern.-

Beit known that I, HERBERT L. DAvIs, a citizen of the United States, residing at \Vashington, in the District of Columbia, have 'in- 5 vented certain new and useful Improvements in Electrically- Controlled Perforating Ma- -chines; and I do herebydeclare thefollow'ing to be a full, clear, and exact description of the invention,such as will enable others skilled in .10 the art to which it appertains to make and use the same.

This invention relates to electrically-controlled perforating-machines and especially to that class of perforating-machines designed ,1 5 and employed for perforating music-sheets for use in connection with automatic or self-playing musical instruments,-and it is in the nature of an im provement on the perforating-machines shown and described in Letters Patent .20 No. 659,053, grantedto George H. Davis on the 2d day of October, 1900, and in a pending application for patent filed by said George H.

1 Davis on the 22d day of April, 1901, Serial =No. 57,000. In said Letters Patent and appli- '25 cation is shown and described aperforatingmachine comprising a series of punches, a series'of punch setting and controlling dogs, electromagn-ets for actuating said dogs, acircuit-selector-for throwing the electromagnets into circuit at proper times, a die-block over which the sheet to be perforated is fed, and means for reciprocating the punches. In each of said machines a relatively large space intervened between the magnets and their-armal 3 tures' in orderto cause the latter to-communicate sufficient movement to the punch-settin g dogs, and in order to move the armatures through such relatively large spaces a large amount of electrical. energy was necessarily 4o consumed; furthermore, the action of the magnets in said machine was objection ably slow and there was great liability of sparking where the circuits were broken .at the circuitselector and consequent danger ofin'jurin g or 4 5 destroying the paper stencil.

It is the purpose of the present invention to provide in amachine'of the type referred to improved dogs for setting the punches.

.- it is a further purpose to effect an economy .go in the electric current expended in actuating of Fig. 1.

. dered objectionably slow.

,struction and arrangement of parts presently the punch-settin g dogs by providing improved electromagnetic actuating mechanism.

My inventionalso has for its object to provide certain other improvements, which will hereinafter be rendered apparent.

Tothese ends my invention consists in the features and in the construction, combination, and arrangement of parts hereinafter described, and particularly pointed out in the claims'following the description, reference vbeing had to the accompanying drawings,

forming a part of this specification,wherein Figure 1 is a'view in front elevation of my iifiproved perforating-machine. Fig. 2 is a transverse sectional view taken on the line 2 2 6 5 Fig. 3 is a view in sideelevation of one of the electromagnetic dog-actuating devices, and Fig. at is a detail bottom plan View of one 'of the circuit-breakers.

In carrying my invention into practice I util- 7o ize two well-known laws of mechanicsviz., first, that the power of a lever varies directly as the point at which the-power is applied is located near to or remote from the fulcrum; second, that the force with which an electromagnet attracts its armature varies inversely as the square of the distance which separates the two. In the machines constructed in accordance with the patent and pending application for patent hereinbefore referred to the armatures eac'h required a movement of substantially one-half inch in order to communie cate thenecessary movement to the dogs, and, in order to produce such relatively large movements of the armatures a large amount of elec 8 5 trical energywasnecessarily consumed, and the action of the magnets was, moreover, ren- By utilizing the two known mechanical and electrical laws above set forth by meansof the improved conto be described each magnet is enabled to attract its armature and actuate the punch setting dog connected therewith, assuming an equal amount of electrical energy is employed, approximately sixteen times faster and with eight times the amount of force or power than was possible in the machines beforeallu d ed to. Referring to the drawings, the numeral 1 5 indicates the frame of the machine, which ICp may be of any construction suitable for the purpose, in which isarranged to vertically reciprocate a head 2. in the top f the frame is journaled a driving-shaft which maybe driven from any souree of power capable of communieat inga very rapid rotarymovement to said shaft, and mounted on the latter ar, two eccentrics l, which are connected to the head 2 by (.*ccent;-rie or connecting rods 5, which operate to impart. to the head a slight but very rapid move-intuit. Rigidly bolted to the bed of the frame lumeath the reciprocating head is a die-plate t], in which is"formed a series of holes or perforations T, enlarged or reamed out from their bottoms to a point near the upper face of the die-plate to permit the easy discharge of the punchings or wads punched from the music-sheet. A die-block s is rigidly bolted at each end to the bed of the machine above the dieq'ilat-c, thus leaving a narrow space between the bottom of the dieblock and top of the die-plate, as indicated. at it, through which the music-sheet .10 to be punched is fed by any suitable means. Formed in the die-block. S is a series of holes or perferat ions '1 1 which accurately register wit h the holes or perforations in the die-plate, and arranged to reciprt'icate in said perforations ll are punches l2. lhe upper ends of the punches loosely pass through perforat ions l ht'ormed ina barlhtermed a punch-plate,

and are provided with heads 15, which are adaptedto rest. on the upper side of the punchplate. The puneh-plate is bolted to and reeiproeates with the head 5. As the punches are loosely mon nted in the punch-plate, it will be evident that said punches will not operate to punch the music-sheet. fed between the diebloek and die-plate unless some meansbc provided for setting the punehesthat is to say, for locking the punches to the punch-plate, so as to he fort-ed down by the latter through the music-sheet and into the perforations in the die-plate-and for this purpose dogs are provided that maybe thrown into operation toloek t he punches rigidly to the punch-plate All the parts (fiOllSlll'llttttl and arranged as al ove deseril red are fully shown and deseribtal in the Letters lat-entand pendingapplication of (teorge ll. Davis before. set forth and form no part. of the present invention.

The improved dogs for locking the punches to the puneh-plate and forming a part of my present invention are constructed and arranged as follows: thtrried by the head .2 and arranged above the punch-plate it is a rod or shaft lb, on which are fulerumed or loosely mounted the upper ends of pivoted or swinging dogs 17, each *.onsist1in'gofa metallic plate or bar, the'lower end of which for nearly its entire width is'beveled orgieciined, as atlS, the lowermost edge or eor ndr being approximately square or at a right angle to the longitudinal axis of the dog, as indicated at it). 'lhere will of course be --provided one such dog for each punch, and

each dog wilLbc suspended in vertical alinement. with one of the punches. Strips 20 are attached to the upper opposite sides of the much-plate, and formed in the upper side of the punch-plate are transverse grooves 2.1, in which the lower ends of the dogs are guided in their oscillating movements, such movennmts being limited in both directions by the strips or stops 2 The lower ends of the dogs are thuscaused to lie inexact; aline- 'ment with the upper ends of the punches. 'lhe'upper ends of the dogs are formed semicircular, as at 22, the center of the circles being the axial center of the shaft 16, and said semicircular ends rest lightly in contact with. the under side of a presser-bar, :23 fixed in the head 2, whereby all strain exerted in forcing down the punches is taken ott the shaft 16. it will be evident; that when any of the dogs occupy the position shown in dotted lines said dogs asthe'y and the punchplate descend will exert no pressure on the corresponding punches, and hence the latter will not punch the music-sheet; but if some of the punches be swung to the position shown in full lines then the lowermost and square end or edge if) of such dogs will engage the upper ends of the punches and set the latter, and as the punch-plate and dogs descend the set punches will be forced down into the die-plate and will punch the paper.

I will now describe my improved electromagnetic mechanism for actuating the dogs. For each dog I provide two elect'romagnets, each comprising two helices, said helices being arranged one above theothenas shown in Fig. I}, and in pairs, as usual, said helices being respectively indicated by the numerals 2t et 25, the helices it and 24 constituting one electromagnet and the helices and 25 another. lhe helices are-fixed to an upright metallic U-shaped frame 211, which is rigidly secured to the frame of the machine by lagbolts 27, and to the upper free end 28 of the frame 26 is pivoted the upper end of the armature 2!), an adjusting-spring 30 being attached to the upper extremity of the ar1na-' ture and operating to normally hold the ar mature away from the poles of the magnets in a usual manner. Passing loosely through a suitable aperture in the lower end of the armature is the threaded end of a hook It], which is adjustably held in place on the ar-. mature by two nuts -52, screwed over the threaded'eml of the hook on opposite sides of thearmaturc. 'livotally connectedto each of the dogs is a clip 33, consisting of a small bar forked at one end, as at 34, and perforated, as at 23 at.- the other end, said forked end straddling o'r embracing one edge of the dogand pivoted thereto bya pivot-pin 30. As clearly shown, the clips are pivoted to'the dogs immediately below or contiguous to the l'ulerums ot? the latter. Each of the dogs is connected to-one of the armatures :39 by a link consisting of arod 37, one end of which is bent at a right angle, as at 38, and loosely titted in the perforation .35 of the clip on the TIO dog, and the other end thereof is bent to form an eye 3!), which loosely engages the hook 31, fixed in the lower end of the armature. By means of the described ()Olll'lCCll-lOllS between the armatures and the dogs shown it will be obvious that any movement of any one of the armature's will be con'nnunicatcd to its corresponding dog, and by connecting said links to the dogs at points contiguous'to the fulcrums of the latter it follows that but a very slight movement of the armatures will be su flicicnt to completely throw the dogs into and out of operation.

The electromagnets are automatically thrown into and out of operation to actuate the proper dogs to in turn set the. proper punches by any suitable selecting mechan ism-such, for example, as follows:

. lhe numeral e0 indicates a stencil or pattern which may conveniently consist of a thin perforated paper strip or sheet, ofwhich the completed music-sheet formed on the machine is an exact duplicate. Said stencil or pattern sheet is fed by any suitable means over and in contact with a metallic roller i1, and arranged to bear at their ends on said roller or the sten- 1 'oneol' the lerminalsot the lower magii' oil thereon, is series of metallic contact-lin- 42, corresponding in numberto the series of electromagnets and dogs. From each of said lingers a conductoi-ib leads to a battery or generator 4%, and from said battery a con.- 'ductor :5 leads to each series of magnets. A conductor ll also leads from the contact-roller 41 to each series of magnets. Each series of n1agnels,then, is controlled byan independent circuit in. whichis included the battery, the contacta-oller, and one of the contact-fingers. lt willv be readily understood, therefore, that as the stencil or pattern sheet is fed ovcrthe contact-roller some or each of the contactfingers will from time to time register with a perforation in the stencil and will project thcrethrough into contact with the roller.- henever this occu rs, the circuit will becompleted through such I in go r and roller and will energize a corresponding series of) magnets and cause the latter to actuate its dog and set a corresplmd Ln g punch, thereby perforating the music-sheet at a point exactlycorrespomling to the perforation. in the stencil. through which the linger projected. 'lhe selecting mechanism described is fully shownaud de- Serlbed in. the said apbliri'alioh andotherLettors lal'ont of the said George II. .llavis and forms no part ol. the present invention.

The cores fl-t and 2t of the upper magnet are wound 'wn h coarse wire l7 or wire of rclatively largo diameler and hence having small resistance, while the coresifi and fzifolj'lihe lower magnet are woundffu 1th rl lati\'(.?l iiue wirelS. 'lhc eoinlueior l5 eoni clst'ed lo from the olher terminal lhereol lezu' (luctor lil ,-wl'iile :1. branch conductor from the conductor l5 to once! the terminals ol' the'upper inn-gin t, and lrlnnilheolherloi inlnal oi the latter leads a eonduelor 5]. Ai-

the contact-roller.

, f sit-nu f ilezuls' tached to the under side of the free end 28- of the, U-shaped frame as. is a cirenit-breaker, comprising a block 52 of insulating material (see Fl 3 and 4.) fastened to the frame by screws 53.. Fixed to one side or edge of said block is a fixed hool'csha md contact 5i, and to the opposite side or edge of said block is fixed one end of a resilient or spring-contact 55, consisting of a fiat spring bent at sub stantially a right angle, the free end of which normally rests against and in electrical contact with the fixed contact 5i. Fixed to-the lower end of the armature 29 at a point opposite the freeend of the springcontact 55 is a thin strip of insulating material 56, which when the armature is attracted by the mag nets bears against said contact and forces its free end away from and out of electrical contact with the fixed contact 54. The conductor 46, leading from the contact-roller l1, is connected to the spring-contact 55 and to the conductor 40, leading from the lower magnet, and the conductor 51-, leading from the upper magnet, is connected to the fixed contact 54.- It will be seen, then, that when any one oi? the contact-fingers 42 closes the circuit through the contact roller both the coarse and finev wound magnets will be energized, and the circuits therethrough may be traced as follows: \Vhen the circuit has. been closed as set forth, it by wire 42 to the battery, and from the latter a portion of the current will pass by wire 45 through the finely-wound or lower magnet, and thence by wires 4:9 and so to Another and by far the greater portion of the current will pass by the branch wires 50 and 51 through the coai-ser-wouml upper magnet lo the lixed contact 5i and by the closed swing-contact to the wire 46 and by the latter to the contactroller. Both magnets, then, will be initially energized and will exert their combined power, when the armature is farthest removed from the poles of the magnets, to attract the armature and thereby actuate a corrcspo,'i7 ling dog and set the propel-punch. As the armature closely approaches the magnet-poles, l1o\\'eV -n',-when but little magl'ietic force need be cXpendcdsa3-', when the armature is within one-sixteenth of an inch of the lowermost pole-the insulating strip 56 presses against the spring-cnmtact or.) and forces it out of contact with the lixed contact 54, thus breaking the circuit at this point and cutting out of circuit the coarsely-wonnd upper magnet. The finely-woin-nfl magnet, however, rc-

mains in circuit and completes the movement I of lhe armature and holds the latter until the circuit is b oken between the contact-lingerl2 and r ller-ii. lfnilially. '1hen,when tlicarmais farthest removed from the polcsof the redsihlwombii ied sl'rengl'lu itlhe magnets ill/lg d to attract the armature and more lhedog; butthemomentsuehexpemlilureol? elm-l lflil, energy becomes unnecessary the c mit-aely-wou nsl magnets are cut out of circuit IIO and lhe greater portion oi lhc current thear.

ceases to be expended. In this manner a great saving in electrical energy is eifected. As before described, by pivotally connecting the links in close proximity to the fulcrums of the dogs a slight movement only of the armatures is rendered necessary and an accelerated movement of the dogs is obtained. It is true that such arrangement requires greater power to move the dogs, yet this is approximately compensated for or counterbalanced four times over by the great reduction efiected in magnet dur-ing a greater part of the time.'

Moreover, whenever the circuit is broken betweenthe contact-fingers and the contactroller but a small amount of current is passing over the circuit and sparking is thereby reduced to a minimum, thereby avoiding danger of burning or injuring the stencil.

Having described my invention, what I claim is-- a 1. In an electrically-controlled perforating machine, the combination with a seriesof reciprocatory punches, of a series ofreciprocating punch-setting dogs each'jconsisting of a pivoted bar adapted to be swung into and out of engagement with one ofthe corresponding punches, a clip pivotally connected to each bar, electromagnets for controlling said dogs, means connecting the armatures of said magnets with said clips, and a circuit-selector for automatically throwing said magnets into and out of operation.

2. In an electrically-controlled perforatingmachine, the combination with a series of reciprocatory punches, of a series of reciprocat-- gagement with a corresponding punch, a clip pivotally connected'to each dog at a point in close proximity to the fulcrum thereof,.means connecting the armatures of said magnets with said clips, and a circuit-selector for automatically throwing said magnets into and out of operation. 1

3. In an electrically-controlled perforating machine, the combination with a series of reciprocatory punches, of a series of reciprocating punch-setting dogs each consisting of a bar pivoted at one end and adapted to be swung at its other end into and out of engagement with a correspondingpunch, guides for maintaining the ends of the dogs in alinement with the ends ofv the punches during the oscillating movement of the dogs, a U-shaped clip pivotally connected to each dog at a point in close proximity to the fulcrum thereof, means connectingthe armatures of said magnets with saidclips, and a circuit-selector for automatically throwing said magnets into and out of operation. I

4. In an electrically-controlled perforatingmachine, the combination with a series of electrically-controlled reciprocatory punches, of a series of reciprocating punch-setting dogs each consisting of a bar pivoted at one end and adapted to be swung at its other end into and out of engagement with a corresponding punch, and a punch-plate in which the rear ends of the punches are loosely mounted, said plate being transversely grooved on its upper face in alinement with the punches and the free ends of the dogs arranged to oscillate and be guided in said grooves, substantially as described.

5. In an electrically-controlled perforatingmachine, the combination with a series of electrically-controlled reciprocatory punches, of a series of reciprocating punch-setting dogs each consisting of a bar pivoted at one end and adapted to be swung at-its other end into and out of engagement with a corresponding punch, and a transversely-grooved punchplate-in which the rear ends of the punches are loosely mounted, the free ends of the dogs being arranged to freely oscillate and be guided in said grooves, and projections on the opposite sides of the punch-plate for limitin g the oscillating movement of the dogs, substantially as described.

6. In an electrically-controlled perforatingmachine, the combination with a series of electrically-controlled recipro catory punches, of

a series of branch circuits each including one.

of the coarsely-wound magnets, and circuitbreakers arranged to automatically cut the coarsely-wound magnets out of circuit as the armatures approach the magnets, substantially as described.

7. In an electrically-controlled perforatingmachine, the. combination with a series of electrically-controlled reciprocatory punches, of

a series of reciprocating punch-setting dogs each consisting of a bar pivoted at one end and adapted to be swung at its other end into and out of engagement with a corresponding punch, a series of electromagnets each series comprising two electromagnets and an arms. ture common to both of them, connections between the ar'm'atures and dogs, one of the magnets of each series being wound with relatively coarse wire and the other with fine wire,

a series of electric circuits eaclrincluding a v finely-wound magnet, a circuit-sel'ector and a generator common to all said circuits, a series of branch circuits each including one, of the coarsely-woundm agnets', and means actuated bythe armatures as they approach the mag nets for cutting out the coarsely-wound magnets,- substantially as described;

8-. In an electrically-controlled perfo ratingmachine, the combination with a series of electrically-controlled reciprocatory punches, of a series of reciprocating punch-setting dogs each consisting of a bar pivoted at one end. and adapted to be swung at its other end into and outof engagement with a corresponding punch, a series of electromagnets each series comprising two electromagnets and an arma- .ture common to both of=tl1em,1inks each connected at one end to the free end of one of the armatures and at its other end to one of the dogs in close proximity tothe fulcrum of the latter, one of the magnets of each series being wound with relatively coarse wire and the other with fine wire, a series of electric circuits each including a finely-wound magnet, a circuit-selector and generator common to all said circuits, a series of branch circuits each including one of the coarsely-wound magnets, and circuit-breakers actuated by the armatures as the latter approach the magnets for cutting the coarsely-wound magnets out of circuit, substantially as described.

' 9. In an electrically-controlled perforatingmachine, the combinationwith aseries of electrically-controlled punches, ofa series of punch-setting dogs each consisting of a bar pivoted at one end and adapted tobe swung at its other end into. and out of engagement with a corresponding punch, a series of electromagnets each series comprising two electromagnets and an armature commonto both 0f them, links each adjustably connected at one end to the free end of one of the armatures and at its other end to one of thedogs. in close proximity to the fulcrum of the latter', the said armatures being normally disposed relatively close to the magnets, one of the magnets of each series being wound with relatively coarse wire andthe other with fine wire a series of electric circuits each inclnding one of the-finelywound 1nagncts,.a circuit-selector and generator common to all said circuits, a series of branch circuits each including one of the coarsely-wouml magnets, and circuit-breakers actuated by the armatures as the latter-approach the magnets for (hitting the coarsely-wound magnets out of circuit, substantially asdescribed 10,,In'an electrically-controlled perforatingm'ach-ine, the combination witha series of recilirocatory punches, of ;a series of reciprocating punch-setting dogs each adapted to beswung into and out of engagement with a corresponding punch,-.a series of electros .magnets eachseries comprising two electromagnets and an armature common to both of them, each of the armatures'being connected to one of the dogs,one of the magnets of each series bein g wound with relatively coarse wire;

and the other-with fine wire, a series of elec,

, trio, circuits each including one of thefinely wound magnets,,a circuit-selector and gene l' a'tor common to all said circuits,.a series of branch circuits ,each including 6.11%. of I the 1 V coarsely-wound magnets,and circuit-breakers for cuttingout'the coarsely-wound magnets each consisting of -a fixed and a spring con== tact normally in electric contact with each other, one of said circuit-breakers being in- 12. In a perforating-machine, the combination with punch-settin g means, of electromagnetic mechanism adapted to actuate said punch-setting means, comprising a U -shaped frame, two or more eleetromagnets carried by said frame and arranged between the arms thereof, an armature pivoted to the upper arm of the'frame,a connection betweenthe punchsett-ing means and the lower end of said armature, and a circuit-selector in circuit with said magnets, substantially as ,described.

13; In 2 pelforating-machine, the combination with punch-setting means, of electromagnetic mechanism for actuating said punch-' setting means; comprising a U shapedframe, two or more electromagnets secured tosaid frame between the arms thereof, an armature pivoted to the upper arm of 'theiframe, aconnection between said armature and the punchsetting means, a circuit-breaker secured to the lower arm of the frame and adapted to be actuated by said armature, and a circuitselector in circuit=with said magnets and circuit-breaker, substantially as described.

'14. In a=perforating-machine, thecombination'with punch-settin means, of electromagnetic mechanism for actuating said punchsetting means, comprising a U shaped frame,

two or more. electromagnets secured to said frame between the arms thereofg'an armature pivoted to one of said arms, a connection between said armature and the punch-setting means, a circuit-breaker.secured to the other arm of the frame and adapted to be actuated by the armature, and a circuit-selector in circuit with said magnets and circuit-breaker, substantially as described.

- 15. In aperforating-machinc, the combinationwithpuneh settingmeans, of electromagnetic mechanism for actuating said means,

comprising. a.U-shaped rame, two or more elcctromagnets secured to said frame 7 beand a circuit-selector in circuit with the magtween the arms thereof, an armature pivoted nets and circuit-breaker, substantially as deto one arm of the frame, a connectionhescribed.

tween said. armature and the punch-setting I 111 testimony whereof I aflix my signature means, a block of insulating material secured l in presence of two witnesses. V

to the other arm of the frame, circuit-break HERBERT L. DAVIS. ing blades secured to opposite sides of said \Vitnesses:

block, said blades being normally in contact CLOUD LIVINGSTON,

and adapted to be actuated by the armature, CHAS. S. MUIR. 

